Patents by Inventor Thomas Henzler

Thomas Henzler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6389855
    Abstract: In a locking device for a door, window or the like, having a main lock box, at least one supplementary lock box, and at least one drive rod connecting the supplementary lock boxes to the main lock box, better resistance to break-ins is attained in that the supplementary lock box has a latch bolt that can be retracted freely into the latching position, wherein the latch bolt is displaceable by a spring and/or by a gear past the normal latching position into its locking position.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: May 21, 2002
    Assignee: Gretsch-Unitas GmbH Baubeschlage
    Inventors: Walter Renz, Wolfgang Röger, Thomas Henzler
  • Publication number: 20010037665
    Abstract: In a locking device for a door, window or the like, having a main lock box, at least one supplementary lock box, and at least one drive rod connecting the supplementary lock boxes to the main lock box, better resistance to break-ins is attained in that the supplementary lock box has a latch bolt that can be retracted freely into the latching position, wherein the latch bolt is displaceable by a spring and/or by a gear past the normal latching position into its locking position.
    Type: Application
    Filed: March 26, 1997
    Publication date: November 8, 2001
    Applicant: Felix J. D' Ambrosio
    Inventors: WALTER RENZ, WOLFGANG ROGER, THOMAS HENZLER